A United Airlines Boeing 737-900, operating as Flight 1176 from Denver to San Francisco, experienced a critical flap control malfunction while on final approach to San Francisco International Airport on September 13, 2025. The flight crew initiated a go-around and declared a Mayday, requesting vectors from air traffic control to troubleshoot the issue.
The pilots of United Flight 1176 reported a flap control malfunction, prompting them to ascend to 3,000 feet and request vectors to re-approach the runway. Air traffic control provided the necessary guidance, and after running a checklist, the flight crew was able to position the aircraft for an Instrument Landing System (ILS) approach to runway 28 right.
The incident, while serious, was resolved without injuries to the 140 passengers or six crew members on board. The aircraft, a Boeing 737-900, landed safely at San Francisco International Airport. Aviation-specific channels documented the event with air traffic control audio, but major news organizations did not widely report on it as a standalone story.
This particular incident did not receive extensive mainstream media coverage, likely due to its safe resolution and the absence of significant passenger disruption. News outlets at the time were reportedly focusing on other aviation-related events, such as a series of ground collisions involving United planes at SFO and a nationwide technology outage that caused widespread flight delays.
While this specific flap malfunction on United Flight 1176 was resolved safely, it highlights the complexities and potential challenges faced in aviation operations. The crew’s swift and professional response, in coordination with air traffic control, ensured a safe outcome for all involved.
